Gearing for well-pumping mechanism



Jime 8,1926. 1,581,975

v .J. A. MOLLER' ET AL GEARING FOR WELL PUMPNG MECHANISM Filed Feb. 24 1925 ffy/- Patented June 8, 1926.

l i g -1,587,975

JACOB A. MoLLnn Ann ABBOTT Lamine, or SANTE Fn srmnes, cALIFonnIA- i Gianninason WELL-running; MECHANISM.

Appncanonfnea reime-ry 192,5.y inserita N. 11,1051. n

It is the object of' this invention to deyelop any desired power at' the crank which aetuatesthe Walking-beamof a welll; pum-ping mechanism, to retateilre crankT at anyA desired speed, Without Aclianging the speed or power of either the bandi wheel shaft Which turns the cra-nk or `the engine which method changes the rotary speed of the band Wheel shafhsofthat when the band Wheel is used for pulling the Well. it Will not operate at an ehcient speed until the counter-shaft has been removed from the driving connec tion. p y

Our invention contemplates the provision of means for changing the speed and power ratio between the band Wheel shaft and the Walking-beam of a Well pumpingapparatus. For this purpose reduction gearing is preferably provided between the band Wheel shaft and the crank which operates the 'Walking-beam, sothat by changing the ratio of the gearing, the crank inay-.befturned at.

any desired speed and will develop any required power.y Without. changing the speed of the band Wheel shaft or the engine which drives the same.

The stroke ofI the pump mechanism may thus be adjusted Without necessitating a change of the enginespeed or reduction in the speed of rotationl of the band Wheel shafhso that a relatively long stroke may be employed at relatively slow speed.

The invention will be readilyunderstood from the following description of the accompanying drawings, in Which:

Fig. 1 is a side elevation of a Well showing the reduction gearing.

Fig. 2 is a front elevation of the reduction gearing. o y

Fig. 8 is a side yelevation of the same.

Fig. 41 is a Vertical section through the gearing.

A practical embodiment of the invention is the ben is.

illlustrated-asl vena-ployed in connection with a standard Well? rig" i The stri ng of s cker rods 3 rinthe well. tubing 11 are reciprocated torv operate the pump `inechan'isin by Walking-heami'y5` nm-tinted. `on o Samson pest j The uialking-beain is'l oper.-

p minding fthe derrick floor 41v on 'Wl ch the dierrrck 21s mounted atedirf; the band Wheel' shaft 7 Whichfisfqonr- 8, and operatiyely conf naledon jack p gebean'r hy p1trnan9 and nested to Vthe crank 10. fThe y en shaft 7 3is driven bytheengine through Tl'ielee?` gs for sha-ft 7Comcooperating ha fbearings 14%,-, "con prise nected by 'bolts and. [ined on the jack `posts by bolts n"andftln'nbuckle braces 17..` The ii'iiiproyed drifting' connection is proyided'betu'een shaft 7 and crank 10,-' so' .that

any desired speed or', pewer :may be. .de

nd* Wheel' v11 which is keyed y yeloped at the crank, with shaft7 .and engine 12running at constant speedlj ForI this purpose reduction. gearing .is mourn-'ted shaft 7 and on a counter-shaft 18 having the crank fixed thereto. f i

The counter-shaft is journaled in co-y operating half-bearings 19Which are 'pret erably mounted on the bearing 14 at'l the end Aof shaft 71Which is adapted,l to ro-y tate` crank 10. Bearings 11i-19 may be alined lby a tongue and groove connection 20 betweenfthe same; andthe halves of bearing v19 are connected, and. said bearing is fixed relative to bearing 14 and ack post 8, by extending bolts 15 and 16 through the halves of bearing 19, with nuts 21 on said4 bolts impinging against bothbearing blocks 14 and 19. The bearing 19j1nay be further `braced by `turnbuckle braces 17a.

Gears 22 are mounted on the` ends of shaft 18 and mesh with gears 23 on the shaft 7,

the gears beingdreyed to their shafts as shown at 24 so that they may be readily removed and replaced in order to obtain any desired gear ratio., The outer endofshaft 18 projects beyond the outer gear 22 so that crank 10 may be fixed thereon, the crank being preferably fixed for rotation `with the counter-shaft by the same keyv 2tthat holds the gear'22. l y A The crank is of usual construction including the 'strengthening rib 25 4having a plurality of apertures 26 extending therethrough andspaced lengthwise of the crank. A usual Wrist-pin 27 on Which the end of pitman 9 is journaled, is received through any one of the apertures 26 and fixed in 'lgofthe Walkingbeam 5 may be varied as Rotation desired.

turn crank' l0 `through the meshing gears .22%28, :the crank in turn operating the Y required rvvliking-beam through the pitman- 9. The

mounting of gears 22-23 at both ends of the bearings M-lQbaiances the construction and eliminates vibration, and also provides a strong and durable driving connection.

By changing the gears 22 23 any desired gear ratio may be Aobtained in order to turn crank l at any desired speed and With any power development, Without changing the speed of engine 12' or the band wheel shaft 7.

The increased power necessary for turning the crank When Wrist-pin 27 is set Afor a long stroke of .the Walking-beam, may thus be obtained Without Aspeedingy up the engine; and by providing for change of the speed or power of the crank without changing'the driving connection for the band wheel shaft, the band Wheel` is immediately availabie for operation maximum efficiency when pulling the vveii. 'Y

We claim: 1. An c operating connection for well pumping apparatus, comprising a jack post,

of shaft is thus` adapted toy a bearing mounted thereon, a band Wheel shaft journaled in said bearing, a vbearing mounted on said irstbearing, a countershaft journaled in the second bearing and having thecrank of the pumpingxapparatus fixed on said Counter-shaft, and gearing between the counter-shaft and the y band Wheel shaft. l

2. An operating connection for Weil pumping apparatus, comprising a jack post, a bearing mounted thereon, a band Wheel shaft journaled .in said bearing, a bearing mounted on said first bearing, means for ixing said bearings relative' to one another.`

and the jack post, a counter-shaft journaied in the second bearing and having the crank of the pumping apparatus iXed on said counter-shaft, and gearing between the counter-shaft and the band Wheel shaft.

3. An operating connection for Well pumping apparatus comprising a jack post,

a"bearing mounted thereon, a drive shaft journaied in said bearing, a second bearing mounted on the first bearing, a counter-` shaft journaied in the second bearing, means for driving the Weil pumping apparatus by said counter-shaft, and an operating lconnection between the drive shaft and said counter-shaft. JACOB A. MOLLER. ABBOTT B.`JENKS. 

